51436507 has 2 divisors, whose sum is σ = 51436508. Its totient is φ = 51436506.

The previous prime is 51436493. The next prime is 51436519. The reversal of 51436507 is 70563415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51436507 - 2¹⁵ = 51403739 is a prime.

It is a super-2 number, since 2×51436507² = 5291428504722098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51436537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25718253 + 25718254.

It is an arithmetic number, because the mean of its divisors is an integer number (25718254).

Almost surely, 2^51436507 is an apocalyptic number.

51436507 is a deficient number, since it is larger than the sum of its proper divisors (1).

51436507 is an equidigital number, since it uses as much as digits as its factorization.

51436507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 51436507 is about 7171.9249159483. The cubic root of 51436507 is about 371.8979828745.

The spelling of 51436507 in words is "fifty-one million, four hundred thirty-six thousand, five hundred seven".